Ishihara, Satoru

This story in set in the Taisho era (1912-1926).

Two years after the famous author Uro vanished, his last manuscript is found at the house of competing author Otogai, who seems obsessed with (or is it possessed by?) his supposedly-dead rival. By a strange turn of events, three acquaintances; an illustrator, an editor and a stage performer, end up investigating Otogai's odd behaviour. They discover that the writer's garden appears to be haunted by a mysterious camellia bush...and camellia was Uro's favourite flower. 

(Source: MU)

So wa Reirei no Yuki ni Mai

其は怜々の雪に舞い

Akiyama, Koito

(1-3) Rebirth
Zenji finds out he has a terminal illness called VEB and has to retire from his SIS job. As he walks home, depressed, he runs into a boy who asks him to protect him in exchange for money.

(4-6) Bet, Bed-Millie's- &amp; Bed-Theo's-
Theo has one-sided feelings towards Millie who is heart broken over Zenji taking a lover. Theo breaks into Millie's apartment and nurses him back to health after he forgot to eat causing him to collapse from working too much.

(7-10) Silence
Luca Angeli was born without a voice, but as he grew to have a beautiful features, his parents sold him to the mafia, where he has been living as a (sex) toy. One day, his cruel owners were taken down by Shion, a mafia hitman with mysterious powers, and he was freed. However, with nowhere to go, Luca could do nothing bur remain where he was, thinking of his stoic-looking, taciturn savior...

(Source: Baka Updates)

Silence

サイレンス

Naono, Bohra

Detective Maizuru Motoya has a secret he cannot tell his assistant, whom he is in love with. With a single touch of a person, Motoya can read their thoughts. How he got such ability is in the past. Nakagawa, who doesn't know about his respectful boss's special ability, began to worry when Motoya refuses to let come in contact with him. To add more worry, Motoya is awfully close with Hajime...

(Source: MU)

Yubisaki no Koi

指先の恋

Sawauchi, Sachiyo

Hotei is a low-level devil that lives off of human energy. But lately, he’s having trouble getting any, due to a newcomer in town named Suzaku. Suzaku has been hogging up all of the girls in town, leaving Hotei hungry and desperate. One day, a human boy gives Hotei a piece of candy. Although there is a danger he’ll have a bad reaction, Hotei eats it, and turns into a young boy! Knowing that Suzaku prefers young boys, Hotei decides to use his appearance to leech off of Suzaku and have revenge. But with a turn of events, Hotei finds himself at the receiving end of his prank!
(from B-U)

Devil x Devil

デビル×デビル

Koujima, Nazuki

Upon entering Takamanohara Academy Waka meets Moriya, a strange boy who seems to know him, though the feeling isn't mutual. Despite not knowing who Moriya is, Waka feels a strange pull to him. When he gets an invitation to the mysterious "Gentleman's Meeting" he can't help but be fascinated and a little worried all in one. Upon entering the Shrine's archways, Waka's future becomes increasingly unclear. (SourceL Corrupted Fetishes)

Shinshikyoutei wo Musubou!

紳士協定を結ぼう!

Motoni, Modoru

The story can actually be read as a detective mystery of sorts. New boy Natsume Hiro comes to a boarding school unlike any other school in existence (one fervently hopes) to solve/resolve something that happened in his past- but even that fact takes a while to emerge. The school (this is apparent from page one, so no spoilers) is a hotbed of bullying and rape kept slightly in check by a feudal organization called the Salon. The Salon protects its members from random abuse by specifying who can/must rape whom (yeah, there are must rapes here) under what circumstances, and punishing those who rape/abuse without proper permission. All this to be decided at the whim of the Salon head. Sex at the school is both an overwhelming obsession, as befits an all-male society where there are no other outlets for stress, and a matter of down-and-dirty power politics, not unlike an American jail. When you throw in the Byzantine institution of the Salon, you have a scenario reminiscent of the surrealistic, closed, hothouse world of British boys' schools. But the Rika world is even more bizarre than that. 

(Source: MU)

Shiiku Gakari Rika

Rika the Breeder

Shiikugakari Rika

Fujikawa, Touko

Shinobu grew up in a town so small that he didn't even have any classmates in elementary school. Without any friends his age, he spent his time learning about flowers with a local horticulture expert. Now that he's moved away to a city, he still sticks to himself, since he never really learned how to make friends. That is, with the exception of Yukihito, who came up to him one day and became his friend. The trouble is, now Yukihito means the world to Shinobu, and he doesn't know what to do about it. (Source: Storm in Heaven)

Natsu, Kimi ga Saku

夏、君が咲く。

Takagi, Ryo

Everybody has a protection spirit. Their behavior has a direct influence on the person they protect. For instance, if protection spirit A falls in love with protection spirit B, then host of A will fall for host of B (synchronized effect).

Karin has Hiriji as a protection spirit and that's why he doesn't have friends. It all changes when Karin has a little incident and gets help from his sensei (teacher), Takatsugu, who's protection spirit is Nagi. Sensei is the school nurse and can see, hear, and touch protection spirits and (the same as Nagi) was a playboy 'till he meet Karin (Hiriji).

(from B-U)

Shugoreisama ni Tsuitekoi

Compilation of short stories:

1) Toraware no Mi (Arrested Man)
Iori is a totally heartless playboy and his past comes back to haunt him.

2) Yuki no Kioku (Memories of the Snow)
A child was saved from a snowstorm by a person, who may or may not be a snow spirit, and promised to marry him. Years later, he's saved again.

3) Ugokenai Yoru (Night without Motion)
Kouichi suffers from a childhood trauma which puts up barriers in his relationship with Akira, who, as you would suspect, eventually overcomes the obstacles in the way of their physical relationship.

4) Naive Gespenst
A guy comes back from the dead to be with his lover.

5) Toiki no Netsu (Sigh's Temperature)
After his divorce a crippled man gets drunk and accidentally calls up a escort service. But now the escort decides to become a caretaker and won't leave!

6) Shisen no Katachi (Shape of a Glance)
Yuuki always thought he and Saachi would be together. Because his friend is colorblind, Yuuki would always go out of his way to make sure that Saachi was taken care of at all times. But suddenly, it seems, the cold hearted Saachi has thrown caution to the wind and been hanging out with new friends and purposely ignoring Yuuki.

7) Body by Body
The loss of a lover is never easy. Rou is at home, missing his lover Sen so much; yet there is nothing he can do…until someone shows up! Who could it be?

(Source: Baka-Updates)

Toraware no Mi

囚われの身

Yukimura

A guy with a weird creature on his shoulder and a wand in his hand saved Kureba Masaki, a ceo of a branch company, from falling off a bridge, and forced a condition of "partneship" over him... a nightmare right? Right?! (Source: mangaupdates)

Tennen + Gokuraku Mahoutsukai

It was the roaring 20's, and the country was Japan. Bluecat, or Aoneko, is a debonaire aristocrat with too much money and leisure time. Along with his servant boy Tigerman, he dabbles in private detective work much to the chagrin of the real police detective Mr. Bee-Prince (Hachiouji). Bluecat is handsome—and yes, he knows it—witty, polite, and popular among the rich. However, his deviant libido, as well as his own attractive nature, often land him in danger.

(Source: MU)

Tantei Aoneko

Detective Bluecat

探偵青猫

Oumi, Shinano

A shape-shifter wolf who was once a human, but became a demi-immortal when his lover betrayed and murdered him adopted an orphaned boy, who is now a young man. They travel together, exorcising evil spirits and demons. Trouble follows and finds them often, but they always manage to come out on the other side, pretty much intact.
(from B-U)

Manga Like How About a Cosmic Horror?